CY Wang reviews the GHK Micro AR GBB, a compact airsoft gun with AR-15 aesthetics and modular design. The Micro AR is designed for close-quarters combat (CQB) due to its compact size and enhanced maneuverability. The reviewed model, an MP custom build, utilizes the GHK system, aiming for sniper-like range and precision in a small form factor. It has a 4.5-inch barrel, a CNC vertical trigger, a 135mm PDI inner barrel, a CNC steel bolt, and an SBA415 brace.